Gas purification device for air inlet of chemical instrument

Abstract

The invention belongs to the technical field of chemical engineering, and particularly relates to a chemical instrument air inlet gas purification device which comprises a connecting frame, an adjusting block, a butt joint pipe and a connecting pipe, the adjusting block is rotationally installed in the connecting frame, and two channels used for circulating steam and external air respectively are formed in the adjusting block; the butt joint pipe and the connecting pipe are arranged on the upstream side and the downstream side of the connecting frame respectively, the connecting pipe is connected with a chemical reaction kettle, and the adjusting block can enable any one of the two channels to communicate the butt joint pipe with the connecting pipe. The active carbon air purifier has the advantage that the position of the active carbon filtering assembly can be rapidly adjusted, and the technical problem that in the prior art, when hot steam supply and outside air are switched, the disassembly operation of the active carbon air purifier is tedious and inconvenient is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical industry, in particular, the present application relates to a kind of chemical instrument air inlet gas purification device. BACKGROUND

[0002] In chemical instrument, usually reaction kettle needs to have air inlet, to facilitate control reaction condition, mass transfer and separation process, these air inlets can be used to introduce raw gas, steam or air, can help maintain the pressure balance and temperature control inside system, in chemical production process, especially in some occasions with higher environmental cleanliness requirements, such as pharmaceutical, fine chemical manufacturing etc., the air introduced into the reaction kettle indeed needs to be purified, because untreated air can contain dust, microorganism, harmful gas and other pollutants, these pollutants can have adverse effects on the reaction process, such as triggering unnecessary chemical reaction, polluting product, affecting the quality and safety of final product.

[0003] But the above device still has the following problems in the implementation process: The prior art makes the air introduced into the reaction kettle indeed needs to be purified, such as pharmaceutical, fine chemical manufacturing etc., reaction kettle air inlet generally needs to be equipped with an activated carbon air purifier connected with reaction kettle air inlet, when hot steam needs to be entered, activated carbon air purifier needs to be disassembled, if not disassembled, hot steam entering into activated carbon air purifier will cause activated carbon to fail, and activated carbon air purifier needs to disassemble multiple bolts when disassembling, this process is more troublesome, so a kind of chemical instrument air inlet gas purification device is proposed to solve the above problems. SUMMARY

[0004] Therefore, the present application provides a kind of chemical instrument air inlet gas purification device, with the advantage of quickly adjusting the position of activated carbon filter component, which can overcome the above problems or at least partially solve the problem that reaction kettle air inlet generally needs to be equipped with an activated carbon air purifier connected with reaction kettle air inlet when entering ambient air, when hot steam needs to be entered, activated carbon air purifier needs to be disassembled, if not disassembled, hot steam entering into activated carbon air purifier will cause activated carbon to fail, and activated carbon air purifier needs to disassemble multiple bolts when disassembling, this process is more troublesome.

[0005] To achieve the aforementioned objective, the present invention provides a gas purification device for the air inlet of a chemical instrument, comprising a connecting frame, an adjusting block, a connecting pipe, and a connecting tube. The adjusting block is rotatably installed within the connecting frame and has two channels for the flow of steam and outside air, respectively. The connecting pipe and the connecting tube are respectively located on the upstream and downstream sides of the connecting frame, and the connecting tube is connected to a chemical reaction vessel. The adjusting block enables either of the two channels to connect the connecting pipe to the connecting tube.

[0006] Preferably, it further includes an activated carbon filter assembly for insertion into the channel for circulating outside air. The activated carbon filter assembly includes a storage box, a box cover, a connecting hole, and a first intercepting mesh. The box cover is threaded onto one end of the storage box, the connecting hole is located at opposite ends of the storage box and the box cover, and the first intercepting mesh is located within the connecting hole.

[0007] Preferably, the adjusting block is a metal structure, and the activated carbon assembly further includes magnetic handles, which are disposed on both sides of the end of the lid away from the storage box.

[0008] Preferably, it further includes a docking hole, a docking pipe head, and a sealing assembly. The docking hole is located on the upstream side of the connecting frame. The docking pipe head is installed at the end of the connecting pipe. The docking pipe head is inserted into the docking hole to install the connecting pipe onto the connecting frame. The sealing assembly is located in the inlet of the channel, and when the channel aligns with the docking hole, the sealing assembly improves airtightness by pressing against the end face of the docking pipe head.

[0009] Preferably, the sealing assembly includes a movable ring, a sealing ring, a bellows, and a first spring. The movable ring is located inside the inlet of the channel, the sealing ring is disposed downstream of the movable ring, the downstream end of the bellows is fixedly connected to the movable ring, and the upstream end of the bellows is fixedly connected to the inner wall of the channel. The first spring is disposed between the adjusting block and the movable ring to provide elastic force for the sealing ring to fit against the end face of the connecting pipe head.

[0010] Preferably, the sealing assembly further includes a compression rod and a compression groove. The compression rod is fixedly disposed on the upstream end face of the movable ring, and the compression groove is disposed on the upstream end face of the adjusting block. The compression rod is inserted into the compression groove, and the first spring is disposed in the compression groove and supported at the end of the compression rod.

[0011] Preferably, it further includes a trigger block, a control groove, and a positioning hole. The trigger block is fixedly installed on one side of the movable ring. The control groove is an arc-shaped groove provided on the upstream end face of the connecting frame. The trigger block is slidably engaged with the control groove. The positioning hole is provided at both ends of the arc-shaped groove, and the trigger block fixes the adjusting block by inserting into the positioning hole.

[0012] Preferably, the device further includes a trigger assembly for ejecting the trigger block from the inlet. The trigger assembly includes a trigger rod and a tension spring. One end of the trigger rod is inserted into the positioning hole from the outside of the connecting frame. The tension spring is disposed between the trigger rod and the connecting frame, and is compressed when the trigger rod ejects the trigger block from the positioning hole.

[0013] Preferably, it further includes a fixing component, which includes a limiting groove, a limiting plate, and a linkage rod. The limiting groove is disposed at the bottom of the docking pipe head, the limiting plate is vertically and vertically disposed in the connecting frame, the linkage rod is fixedly connected to the adjusting block, and when the adjusting block rotates, the linkage rod drives the limiting plate to be inserted upward into the limiting groove to fix the docking pipe head in the docking hole.

[0014] Preferably, the fixing assembly further includes a rising plate and a second spring. The rising plate is vertically and flexibly disposed within the connecting frame. The second spring is disposed within the connecting frame and presses down on the top of the rising plate. The bottom end of the linkage rod is slidably disposed within the rising plate. The top end of the limiting plate is fixedly connected to the bottom of the rising plate.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This invention solves the problem that, by using an activated carbon filter component, a sealing component, a triggering component, and a fixing component in conjunction, the movement of the movable ring causes the bellows to extend, and then the movable ring causes the sealing ring to insert into the sealing groove. This solves the problem that when the air inlet of the reactor is used to introduce outside air, an activated carbon air purifier is usually required to be connected to the air inlet of the reactor. When hot steam is required, the activated carbon air purifier needs to be disassembled. If it is not disassembled, the hot steam entering the activated carbon air purifier will cause the activated carbon to fail. Moreover, the disassembly and assembly of the activated carbon air purifier requires the removal of multiple bolts, which is a troublesome process.

[0016] 2. By setting up a matching groove and a second intercepting net, after the activated carbon in the storage box filters and purifies the air, some carbon ash may also be sucked into the air inlet pipe. At this time, the second intercepting net in the matching groove can intercept it.

[0017] 3. This application sets up a sealing component. After the adjusting block is rotated to a certain position, the mating hole is aligned with the outside air inlet channel. At this time, the movable ring drives the sealing ring to insert into the sealing groove, which can seal the connection and prevent gas leakage.

[0018] 4. This application sets up an extrusion rod, an extrusion groove, and a first spring. After the mating hole is aligned with the external air inlet channel, the first spring will undergo elastic deformation to drive the extrusion rod to move. The movement of the extrusion rod will drive the movable ring to move in the movable groove. The movement of the movable ring will drive the bellows to extend. After that, the movable ring will drive the sealing ring to insert into the sealing groove.

[0019] 5. This application sets up a trigger plate, a trigger block, a control slot, and a positioning hole. The movement of the movable ring will drive the trigger plate to move, and the movement of the trigger plate will drive the trigger block into the positioning hole, at which point the position of the adjusting block can be fixed.

[0020] 6. This application sets up a trigger component. When it is necessary to move the adjustment block, the trigger rod is pushed to drive the pull ring to pull the tension spring. Then the trigger rod will push the trigger block into the extension groove. At this time, the handle can be rotated to move the adjustment block.

[0021] 7. This application uses a fixing component. After the pipe head is inserted into the docking hole, the rising plate will compress the second spring and drive the limiting plate to be inserted into the limiting groove at the bottom of the pipe head. This fixes the pipe head and prevents it from detaching.

[0022] 8. This application, by setting a stroke hole, a stroke rod, a mating hole, and a linkage rod, allows the linkage rod to rotate when the handle is rotated. The movement of the linkage rod will cause the stroke rod to move within the cavity of the stroke hole and press against the inner wall. The resulting pressure will cause the rising plate to rise. Attached Figure Description

[0023] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present invention; Figure 2 This is a three-dimensional connection diagram of the connecting pipe head and the second mounting plate provided in an embodiment of the present invention; Figure 3 This is a three-dimensional connection diagram of the adjusting block and the first mounting plate provided in an embodiment of the present invention; Figure 4 This is a perspective sectional view of the second mounting plate provided in an embodiment of the present invention; Figure 5 This is a perspective sectional view of the adjustment block provided in an embodiment of the present invention; Figure 6 This is a perspective view of the second installation provided in an embodiment of the present invention; Figure 7 This is a three-dimensional schematic diagram of the activated carbon filter assembly provided in an embodiment of the present invention; Figure 8 This is a three-dimensional schematic diagram of the triggering component provided in an embodiment of the present invention.

[0024] Reference numerals: 1. Chemical reactor; 2. Connecting pipe; 3. Connecting plate; 4. First mounting plate; 5. Adjusting block; 6. Fixing plate; 7. Second mounting plate; 8. Docking hole; 9. Docking pipe head; 10. Rotating block; 11. Rotating handle; 12. Steam exhaust channel; 13. Outside air exhaust channel; 14. Movable slot; 15. Extension slot; 16. Mounting slot; 17. Push-in hole; 18. Activated carbon filter assembly; 181. Storage box; 182. Box cover; 183. Connecting hole; 184. First intercepting net; 185. Magnetic handle; 19. Sealing assembly; 191. Movable 192. Ring; 193. Sealing ring; 194. Sealing groove; 195. Bellows; 20. Trigger assembly; 201. Receiving shell; 202. Pull ring; 203. Trigger rod; 204. Tension spring; 21. Fixing assembly; 211. Rising plate; 212. Second spring; 213. Limiting plate; 214. Limiting groove; 22. Matching groove; 23. Second intercepting net; 24. Extrusion rod; 25. Extrusion groove; 26. First spring; 27. Trigger plate; 28. Trigger block; 29. ​​Control groove; 30. Positioning hole; 31. Stroke hole; 32. Stroke rod; 33. Mating hole; 34. Linkage rod. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] As shown in the figure, the air inlet gas purification device for chemical instruments in this embodiment includes a connecting frame, an adjusting block 5, a connecting pipe and a connecting pipe 2. The adjusting block 5 is rotatably installed in the connecting frame. The adjusting block 5 is provided with two channels for the flow of steam and outside air, respectively. The connecting pipe and the connecting pipe 2 are respectively located on the upstream and downstream sides of the connecting frame, and the connecting pipe 2 is connected to the chemical reaction vessel 1. The adjusting block 5 enables either of the two channels to connect the connecting pipe and the connecting pipe 2.

[0027] In this embodiment, the two channels are a steam inlet channel 12 for discharging steam and an outside air inlet channel 13 for discharging outside air. A rotating block 10 is fixedly installed on the downstream side of the adjusting block 5, and the rotating block 10 is rotatably connected to the downstream side of the connecting frame. A rotating handle 11 is fixedly installed on the upstream side of the adjusting block 5, and the rotating handle 11 is rotatably engaged with the upstream side of the connecting frame. The rotating handle and the rotating block 10 form the rotation center of the adjusting block 5. By operating the rotating handle 11, the adjusting block 5 can be rotated, thereby switching between the steam inlet channel 12 and the outside air inlet channel 13, meeting the requirement of supplying steam or outside air into the chemical reactor 1.

[0028] The chemical instrument air inlet gas purification device of this embodiment also includes an activated carbon filter assembly 18 for insertion into a channel for circulating outside air. The activated carbon filter assembly 18 includes a storage box 181, a box cover 182, a connecting hole 183 and a first intercepting net 184. The box cover 182 is threaded onto one end of the storage box 181. The connecting hole 183 is located at opposite ends of the storage box 181 and the box cover 182. The first intercepting net 184 is located inside the connecting hole 183.

[0029] In this embodiment, a push-in hole 17 for inserting the activated carbon assembly into the outside air inlet channel 13 is provided on the downstream side of the connecting frame. Before the outside air enters the chemical reactor 1 through the connecting pipe 2, the outside air is filtered by the activated carbon filter assembly 18 during its passage through the outside air inlet channel 13.

[0030] The adjusting block 5 is made of metal, and the activated carbon assembly also includes magnetic handles 185, which are located on both sides of the end of the cover 182 away from the storage box 181. After the activated carbon filter assembly 18 is inserted into the outside air exhaust channel 13, the magnetic handles 185 attract the adjusting block 5, thus fixing the activated carbon filter assembly 18 in place.

[0031] The chemical instrument air inlet gas purification device of this embodiment also includes a docking hole 8, a docking pipe head 9, and a sealing component 19. The docking hole 8 is located on the upstream side of the connecting frame, and the docking pipe head 9 is installed at the end of the connecting pipe. The docking pipe head 9 is inserted into the docking hole 8 to install the connecting pipe onto the connecting frame. The sealing component 19 is located in the inlet of the channel, and when the channel is connected to the docking hole 8, the sealing component 19 improves the airtightness by pressing against the end face of the docking pipe head 9.

[0032] When installing the connecting pipe onto the connecting frame, the connecting pipe head 9 is directly inserted into the connecting hole 8. When the steam discharge channel 12 and the outside air discharge channel 13 are respectively connected to the connecting hole 8, the sealing component 19 improves the airtightness by pressing it against the surface of the connecting pipe head 9.

[0033] In a relatively specific embodiment, the sealing assembly 19 includes a movable ring 191, a sealing ring 192, a bellows 194, and a first spring 26. The movable ring 191 is located inside the inlet of the channel, the sealing ring 192 is located downstream of the movable ring 191, the downstream end of the bellows 194 is fixedly connected to the movable ring 191, and the upstream end of the bellows 194 is fixedly connected to the inner wall of the channel. The first spring 26 is located between the adjusting block 5 and the movable ring 191, and is used to provide elastic force for the sealing ring 192 to fit against the end face of the connecting pipe head 9.

[0034] When the steam discharge channel 12 is connected to the docking hole 8, or when the outside air discharge channel 13 is connected to the docking hole 8, the elastic force of the first spring 26 causes the movable ring 191 to move toward the docking hole 8. The movable ring 191 drives the sealing ring 192 to press against the end face of the docking pipe head 9, and during this process, the bellows 194 is stretched.

[0035] In this relatively specific embodiment, the sealing assembly 19 further includes a compression rod 24 and a compression groove 25. The compression rod 24 is fixedly disposed on the upstream end face of the movable ring 191, and the compression groove 25 is disposed on the upstream end face of the adjusting block 5. The compression rod 24 is inserted into the compression groove 25, and the first spring 26 is disposed in the compression groove 25 and supported at the end of the compression rod 24.

[0036] The extrusion rod 24, in cooperation with the extrusion groove 25, stably slides the movable ring 191 onto the adjusting block 5. During the rotation of the adjusting block 5, both the movable ring 191 and the sealing ring 192 are confined within the channel inlet by the connecting bracket. When one of the channels aligns with the mating hole 8, the elastic force of the first spring 26 causes the sealing assembly 19 to automatically activate.

[0037] A sealing groove 193 is provided on the end face of the connecting pipe head 9 to cooperate with the sealing ring 192. When the sealing assembly 19 is activated, the sealing ring 192 enters the sealing groove 193.

[0038] Specifically, in this embodiment, both the steam discharge channel 12 and the outside air discharge channel 13 are provided with movable grooves 14, and the sealing component 19 is located in the movable groove 14. At this time, the bellows 194 is in a retracted state.

[0039] The chemical instrument air inlet gas purification device of this embodiment also includes a trigger block 28, a control groove 29 and a positioning hole 30. The trigger block 28 is fixedly installed on one side of the movable ring 191. The control groove 29 is an arc-shaped groove provided on the upstream end face of the connecting frame. The trigger block 28 and the control groove 29 are slidably engaged. The positioning hole 30 is provided at both ends of the arc-shaped groove, and the trigger block 28 is fixed by inserting an adjusting block 5 into the positioning hole 30.

[0040] When the steam discharge channel 12 is aligned with the docking hole 8, the trigger block 28 corresponding to the steam discharge channel 12 is located within the positioning hole 30, achieving the effect of fixing the adjusting block 5, thereby maintaining the alignment of the steam discharge channel 12 with the docking hole 8. When the outside air discharge channel 13 is aligned with the docking hole 8, the trigger block 28 corresponding to the outside air discharge channel 13 is located within the positioning hole 30, achieving the effect of fixing the adjusting block 5, thereby maintaining the alignment of the outside air discharge channel 13 with the docking hole 8.

[0041] In a relatively specific embodiment, a trigger plate 27 is fixedly mounted on the side of the movable ring 191, and a trigger block 28 is fixed on the trigger plate 27. An extension groove 15 is provided on one side of the movable groove 14 to allow the trigger plate 27 to move when the trigger block 28 disengages from or inserts into the positioning hole 30. During the rotation of the adjusting block 5, the trigger plate 27 is located inside the extension groove 15.

[0042] The chemical instrument air inlet gas purification device of this embodiment also includes a trigger assembly 20 for pushing the trigger block 28 out of the inlet. The trigger assembly 20 includes a trigger rod 203 and a tension spring 204. One end of the trigger rod 203 is inserted into the positioning hole 30 from the outside of the connecting frame. The tension spring 204 is disposed between the trigger rod 203 and the connecting frame. When the trigger rod 203 pushes the trigger block 28 out of the positioning hole 30, the tension spring 204 is compressed.

[0043] Before rotating the adjusting block 5, operate the trigger component 20 corresponding to the insertion positioning hole 30, and press the trigger rod 203 towards the positioning hole 30. The trigger plate 27 compresses the tension spring 204 and pushes the trigger block 28 out of the positioning hole 30. At this time, the adjusting block 5 can be unlocked, so that the adjusting block 5 can be rotated.

[0044] In this embodiment, the trigger assembly 20 further includes a receiving shell 201 and a pull ring 202. The receiving shell 201 is fixedly mounted on the connecting frame. Both ends of the trigger rod 203 pass through the receiving shell 201. A tension spring 204 is disposed inside the receiving shell 201. One end of the tension spring 204 facing the positioning hole 30 is connected to the inner wall surface of the receiving shell 201, and the other end of the tension spring 204 away from the positioning hole 30 is connected to the pull ring 202. The pull ring 202 is fixedly sleeved on the outside of the trigger rod 203, and the pull ring 202 is slidably disposed inside the receiving shell 201. When the trigger rod 203 is pressed down towards the positioning hole 30, the trigger rod 203 drives the pull ring 202 to move within the receiving shell 201 and compress the tension spring 204.

[0045] The chemical instrument air inlet gas purification device of this embodiment also includes a fixing component 21. The fixing component 21 includes a limiting groove 214, a limiting plate 213 and a linkage rod 34. The limiting groove 214 is set at the bottom of the docking pipe head 9. The limiting plate 213 is vertically and vertically set in the connecting frame. The linkage rod 34 is fixedly connected to the adjusting block 5. When the adjusting block 5 rotates, the linkage rod 34 drives the limiting plate 213 to be inserted upward into the limiting groove 214 to fix the docking pipe head 9 in the docking hole 8.

[0046] When the adjusting block 5 is rotated, it drives the linkage rod 34 to rotate. During the rotation, the linkage rod 34 lifts the limiting plate 213, which then inserts into the limiting groove 214 from bottom to top, thereby fixing the connecting pipe. Specifically, the limiting plate 213 is C-shaped, with its upper and lower ends located on the upper and lower sides of the connecting hole 8, respectively. When the linkage rod 34 rotates, it pulls the top of the limiting plate 213. As the limiting plate 213 moves upward, its bottom end inserts into the limiting groove 214.

[0047] In this embodiment, the fixing component 21 also includes a rising plate 211 and a second spring 212. The rising plate 211 is vertically and vertically disposed in the connecting frame. The second spring 212 is disposed in the connecting frame and presses down on the top of the rising plate 211. The bottom end of the linkage rod 34 is slidably disposed in the rising plate 211. The top end of the limiting plate 213 is fixedly connected to the bottom of the rising plate 211.

[0048] Specifically, an installation groove 16 is provided on the upstream side of the connecting frame, the rising plate 211 is slidably disposed in the installation groove 16 in the height direction, the second spring 212 is located in the installation groove 16, and one second spring 212 is provided on each side of the top of the rising plate 211. The top end of the linkage rod 34 is fixedly connected to the rotating handle, and the bottom end of the linkage rod 34 is fixedly connected to the stroke rod 32. The inside and top of the upper rope block are respectively provided with a strip-shaped stroke hole 31 and a mating hole 33. The stroke rod 32 slides in the stroke hole 31, and the bottom end of the linkage rod 34 passes through the mating hole 33 and can slide in the mating hole 33.

[0049] When the handle is turned to rotate the adjusting block 5, the handle drives the linkage rod 34 to rotate. While the bottom end of the linkage rod 34 moves within the mating hole 33, the stroke rod 32 moves within the stroke hole 31 along with the linkage rod 34. At this time, the stroke rod 32 can lift the rising plate 211.

[0050] In this embodiment, the connecting frame includes a fixed plate 6, a first mounting plate 4, and a second mounting plate 7. The first mounting plate 4 is fixedly installed at the downstream end of the fixed plate 6, and the second mounting plate 7 is fixedly installed at the upstream end of the fixed plate 6. The mating hole 8, the extrusion groove 25, the control groove 29, the positioning hole 30, and the mounting groove 16 are all provided on the second mounting plate 7. The push-in hole 17 is provided on the first mounting plate 4, and the upstream end of the connecting pipe 2 is connected to the first mounting plate 4.

[0051] Specifically, the first mounting plate 4 has a through hole, and the connecting pipe 2 communicates with the through hole. Steam or outside air enters the connecting pipe 2 through the through hole. A connecting plate 3 is fixedly installed at the upstream end of the connecting pipe 2, and a matching groove 22 is provided on the upstream end face of the connecting plate 3. A second intercepting mesh 23 is installed in the matching groove 22. The steam or outside air entering the connecting pipe 2 can be further filtered by the second intercepting mesh 23.

[0052] How this application works: When the chemical reactor 1 is in use, depending on the actual working conditions, its air inlet sometimes needs to draw in steam and sometimes needs to draw in outside air for cooling. At this time, the connecting plate 3 and the connecting pipe 2 can be fixed with bolts, and then the docking pipe head 9 can be inserted into the docking hole 8 on the upstream side of the second mounting plate 7.

[0053] Then, when it is necessary to select the outside air to enter the inlet tube, first rotate the box cover 182 to separate it from the storage box 181, then fill the storage box 181 with activated carbon, then twist the box cover 182 to fix it to the storage box 181 and insert it into the outside air exhaust channel 13 through the push hole 17. At this time, the magnetic handle 185 can be attracted and fixed to the adjustment block 5. Grip the handle 11 tightly to rotate the adjusting block 5. When the adjusting block 5 rotates, the handle 11 will rotate the linkage rod 34. The movement of the linkage rod 34 will cause the stroke rod 32 to move in the inner cavity of the stroke hole 31 and press against the inner wall. The pressure generated at this time will cause the rising plate 211 to rise. The rising plate 211 will press the second spring 212 upward and cause the limiting plate 213 to be inserted into the limiting groove 214 at the bottom of the docking pipe head 9. In this way, the docking pipe head 9 can be fixed.

[0054] As the adjusting block 5 rotates, it also drives the trigger block 28 to move within the control groove 29. When the docking hole 8 aligns with the external air inlet channel 13, the first spring 26 undergoes elastic deformation, causing the extrusion rod 24 to move. The extrusion rod 24 drives the movable ring 191 to move within the movable groove 14. The movable ring 191 causes the bellows 194 to extend, which in turn causes the sealing ring 192 to insert into the sealing groove 193. Simultaneously, the movable ring 191 drives the trigger plate 27 to move, and the trigger plate 27 causes the trigger block 28 to enter the positioning hole 30. At this point, the position of the adjusting block 5 can be fixed. Then, outside air enters the outside air exhaust channel 13 through the docking pipe head 9 and passes through the storage box 181. At this time, the activated carbon inside the storage box 181 can quickly adsorb the particulate matter in the air.

[0055] When it is necessary to align the steam discharge channel 12 with the docking hole 8, push the trigger rod 203 to drive the pull ring 202 to pull the tension spring 204. Then the trigger rod 203 will push the trigger block 28 into the extension groove 15. At this time, the handle 11 can be rotated to move the adjusting block 5.

[0056] The above steps complete the air purification process, enhancing the functionality of the air inlet gas purification device for chemical instruments and making it easier for users to operate.

[0057] In summary, this chemical instrument air inlet gas purification device, through the coordinated use of activated carbon filter component 18, sealing component 19, triggering component 20, and fixing component 21, allows the moving ring 191 to move, causing the bellows 194 to extend and the sealing ring 192 to insert into the sealing groove 193. This solves the problem that when the air inlet of the reactor is exposed to outside air, an activated carbon air purifier is usually required to be connected to the reactor air inlet. When hot steam is required, the activated carbon air purifier needs to be disassembled. If it is not disassembled, hot steam entering the activated carbon air purifier will cause the activated carbon to become ineffective. Moreover, the disassembly and assembly of the activated carbon air purifier requires the removal of multiple bolts, which is a rather troublesome process.

[0058] The technical scope of this invention is not limited to the contents of the above specification. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the scope of this invention.

Claims

1. A gas purification device for the air inlet of a chemical instrument, characterized in that, The device includes a connecting frame, an adjusting block (5), a connecting pipe and a connecting pipe (2). The adjusting block (5) is rotatably installed inside the connecting frame. The adjusting block (5) has two channels for the flow of steam and outside air, respectively. The connecting pipe and the connecting pipe (2) are respectively located on the upstream and downstream sides of the connecting frame. The connecting pipe (2) is connected to the chemical reactor (1). The adjusting block (5) enables either of the two channels to connect the connecting pipe and the connecting pipe (2).

2. The gas purification device for the air inlet of a chemical instrument as described in claim 1, characterized in that, It also includes an activated carbon filter assembly (18) for insertion into the channel for circulating outside air. The activated carbon filter assembly (18) includes a storage box (181), a cover (182), a connecting hole (183), and a first intercepting mesh (184). The cover (182) is threaded onto one end of the storage box (181). The connecting hole (183) is located at opposite ends of the storage box (181) and the cover (182). The first intercepting mesh (184) is located inside the connecting hole (183).

3. The gas purification device for the air inlet of a chemical instrument as described in claim 2, characterized in that, The adjustment block (5) is a metal structure, and the activated carbon assembly also includes a magnetic handle (185), which is located on both sides of the end of the cover (182) away from the storage box (181).

4. The gas purification device for the air inlet of a chemical instrument as described in claim 1, characterized in that, It also includes a docking hole (8), a docking pipe head (9), and a sealing assembly (19). The docking hole (8) is located on the upstream side of the connecting frame. The docking pipe head (9) is installed at the end of the connecting pipe. The docking pipe head (9) installs the connecting pipe onto the connecting frame by inserting it into the docking hole (8). The sealing assembly (19) is located in the entrance of the channel. When the channel is connected to the docking hole (8), the sealing assembly (19) improves airtightness by pressing against the end face of the docking pipe head (9).

5. The gas purification device for the air inlet of a chemical instrument as described in claim 4, characterized in that, The sealing assembly (19) includes a movable ring (191), a sealing ring (192), a bellows (194), and a first spring (26). The movable ring (191) is located inside the entrance of the channel. The sealing ring (192) is located downstream of the movable ring (191). The downstream end of the bellows (194) is fixed to the movable ring (191), and the upstream end of the bellows (194) is fixed to the inner wall of the channel. The first spring (26) is located between the adjusting block (5) and the movable ring (191) to provide elastic force for the sealing ring (192) to fit against the end face of the docking pipe head (9).

6. The gas purification device for the air inlet of a chemical instrument as described in claim 5, characterized in that, The sealing assembly (19) further includes a compression rod (24) and a compression groove (25). The compression rod (24) is fixedly disposed on the upstream end face of the movable ring (191). The compression groove (25) is disposed on the upstream end face of the adjusting block (5). The compression rod (24) is inserted into the compression groove (25). The first spring (26) is disposed in the compression groove (25) and supported at the end of the compression rod (24).

7. The gas purification device for the air inlet of a chemical instrument as described in claim 5, characterized in that, It also includes a trigger block (28), a control groove (29), and a positioning hole (30). The trigger block (28) is fixedly installed on one side of the movable ring (191). The control groove (29) is an arc-shaped groove provided on the upstream end face of the connecting frame. The trigger block (28) slides with the control groove (29). The positioning hole (30) is provided at both ends of the arc-shaped groove. The trigger block (28) fixes the adjusting block (5) by inserting into the positioning hole (30).

8. The gas purification device for the air inlet of a chemical instrument as described in claim 7, characterized in that, It also includes a trigger assembly (20) for ejecting the trigger block (28) from the inlet. The trigger assembly (20) includes a trigger rod (203) and a tension spring (204). One end of the trigger rod (203) is inserted into the positioning hole (30) from the outside of the connecting frame. The tension spring (204) is disposed between the trigger rod (203) and the connecting frame. When the trigger rod (203) ejects the trigger block (28) from the positioning hole (30), the tension spring (204) is compressed.

9. The gas purification device for the air inlet of a chemical instrument as described in claim 7, characterized in that, It also includes a fixing component (21), which includes a limiting groove (214), a limiting plate (213), and a linkage rod (34). The limiting groove (214) is located at the bottom of the docking pipe head (9). The limiting plate (213) is vertically mounted in the connecting frame. The linkage rod (34) is fixedly connected to the adjusting block (5). When the adjusting block (5) rotates, the linkage rod (34) drives the limiting plate (213) to be inserted upward into the limiting groove (214) to fix the docking pipe head (9) in the docking hole (8).

10. The gas purification device for the air inlet of a chemical instrument as described in claim 9, characterized in that, The fixing component (21) also includes a rising plate (211) and a second spring (212). The rising plate (211) is vertically and vertically disposed within the connecting frame. The second spring (212) is disposed within the connecting frame and presses down on the top of the rising plate (211). The bottom end of the linkage rod (34) is slidably disposed within the rising plate (211). The top end of the limiting plate (213) is fixedly connected to the bottom of the rising plate (211).

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